<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title>选择器</title>
		<style type="text/css">
		/* a{
			font-size: 40px;
			color: #8B4513;
		} */
		/* .class1{
			font-size: 40px;
			color: #8B4513;
		} */
		#id1 {
			font-size: 40px;
			color: #8B4513;
		}
		</style>
	</head>
	<body>
		<!-- <a class="class1">sss</a>
		<a>sss</a>
		<p class="class1">sss</p> -->
		<a id="id1">sss</a>
		<a>sss</a>
		<p>sss</p>  <!-- id唯一标识 -->
	</body>
</html>
